Case C-788/18: Judgment of the Court (First Chamber) of 26 February 2020 (request for a preliminary ruling from the Commissione tributaria provinciale di Parma — Italy) — Stanleyparma Sas di Cantarelli Pietro & C., Stanleybet Malta Ltd, v Agenzia delle Dogane e dei Monopoli UM Emilia Romagna — SOT Parma (Reference for a preliminary ruling — Freedom to provide services — Article 56 TFEU — Games of chance — Taxation — Principle of non-discrimination — Single tax on betting)